The BNP is preparing to file lawsuits against former chief election commissioners and their colleagues who oversaw three controversial national elections.

According to party sources, BNP leader Salahuddin Ahmed will visit the Election Commission office on Sunday morning to deliver an official letter signed by Secretary General Mirza Fakhrul Islam Alamgir to the current Chief Election Commissioner.

Following that, Salahuddin is expected to file a case at the Sher-e-Bangla Nagar Police Station. The case documents will bear Fakhrul’s signature and will name the former election officials as accused parties in connection with their roles in allegedly rigged elections.